Before the Lulu Direct app can validate an order and begin production, the order must include a phone number. If the shipping information does not include a phone number, the order will be marked as Invalid and will not proceed to production until the merchant manually adds a phone number.You can require customers to provide a phone number during checkout by updating your Shopify settings.To make this change, follow these steps:1. In Shopify, click the Shopify Settings gear in the lower left corner.2. Next, click Checkout. 3. Under Customer Information, select Required for the option Full Name and Shipping Address Phone Number.4. Click Save. The changes will take effect immediately.
